Railing top rail



FIG. 1 is a perspective view of our railing top rail;

FIG. 2 is an end view thereof,

FIG. 3 is a left side view thereof, the right side being a mirror image thereof;

FIG. 4 is a top view thereof; and,

FIG. 5 is a bottom view thereof.

The break lines depict bounds of the claim. The portion between the break lines forms no part of the claimed design. 

CLAIM The ornamental design for a railing top rail, as shown and described. 